Lubricator.



W. H. KNOWLES d: W. F. GREHAM. LUBRIGATOR.

APPLICATION FILED sEPT.19, 1912.

Patented Sept. 23, 1913.

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Was/A947 4 barrel 2 carried in a. housing 3 the latter.

lUNllTED STATES lPATENT OFFICE.

WILLIAM Hummm-GY KnowLns AND WILLIAM FREDERICK GOBEHAM, or LONDON,

ENGLAND..

LUBRICATOR.

Loa'aaii.

Specication of Letters latent.

Patented Sept. 23, 1913.

Application led September 19, 1912. Serial No. 721,266.

KNowLns and WILLIAM FREDERICK Groun-` HAM, a citizen of the United States ofj America and a subject o f His Majesty the King of `Grreat Britain, respectively, andi both residents .of London, England, havef invented a certain new and useful Improvement in Lubricators, of which the following neled swash ring 13 pivoted on two oppois a specification.

This invention relates to improvementsf in lubricators of the class adapted to feed; seinifluid or thick lubricating material particularly graphite and oil, and which pos' sess a plunger or piston pump operated by )I a swash ring the position of which can be` adjusted to obtain the desired stroke of plunger and consequently the amount of oil;

10 due to the angle at which the swash ring feed.

The object of the present invention is to improve the construction of lubricators of this class whereby they are rendered moreI certain in their action, in that vibrationg will not affect them and also are rendered in an important respect proof against clogi 1 rangement being such that the plunger has ging.

As previously constructed the means for holding the swash ring in its operative position was liable to fail with vibration of the lubricator so that the pump ceased to op crate with the result that the heavy mate- In this drawing Figure 1 is a sectional,

elevation of the lubricator according to the present invention. Fig. 2 is a part external elevation' looking in the direction of the arrow Fig. 1. Fig. 3 is a front view of the pointer shown in Fig. 2. Fig. 4 is a side elevation of the-pointer, and Fig. 5 is a sectional elevation on an enlarged scale of thedelivery valve shown in Fig. 1'.

The lubricator comprises the usual casing 1 for the lubricant containing a pump being fixed in the casing while the barrel is revoluble by a worm 4, the shaft 5 of which is driven by any suitable means outside of the casing andk which worm engages and below the cross worm wheel 6 on the barrel. The wheel 6 drives through a pin 7 a stirrer 8 which prevents the heavy part of the lubricant from settling. The wheel 6 further carries a link 9 `which enables it to rotate a lever 10 tov which it is connected at one end and which at the other end has a ball 11 carried between two cups 12, 12, forming a socket for the ball and which cups can slide in a chansitely arranged pins 14, 14 in the casing.

One end of the arm 10 is forked and pivots on two pins 15 (one being shown) of a spherical crosshead 15, through which passes the upper part of'a plunger 16, which is prov1ded with fixing collars 17, 17, above ead and tightening nuts, so that any rocking action of the lever is set imparts a corresponding vertical reciprocation to the plunger 16 in the barrel 2. The plunger has a reduced diameter at 17 where it passes through a tubular piston 18 slidable in the barrel 2 and its end terminates in a cross head 19 and nut 20, the ara slight additional movement over the piston 18 whereby an inlet opening at --the point 21 is left on the upward stroke of the plunger and an outlet (which is permanent) at 22 on the downward stroke of the plunger, the piston traveling with it in each case. The inlet for the lubricant to the plunger and'piston is by way of the passage 23 in the stirrer. The pump barrel has screwed to it a block 24 having a central passage (Fig. 5) and an annular hardened cutting edge 25 flared from within forming with the internally coned or outwardly flared and hardened surface of a block 26 a delivery valve. The block 26 is pressed by a spring 27 to bring thev cutting edge 25 and coned portion together. Screwed to the block 24 is a sleeve 28 to which in turn is screwed a tubular block 29 supporting the spring 27 such block 29 having outlet passages 30. 3()

`delivering into a screwed closing portion 31' .fof a sleeve 32 which is screwed in turn to and forms part of the casing 1. The block 29 carries a terminal rod 33 which enters the delivery pipe 34 and which carries a coil of wire 35 which is rotated with the rod 33 and stirs and propels the lubricant 1n the pipe 34 up to the point of use. I

The swash ring 13 is tilted on its plvot points 14 to alter its position and consequently the length of stroke of the plunger by means of a segment 36 (Fig. 2) and a pinion 37 preferably having teeth" on a portion of the circumference only so that it can only be set to engage the segment correctly. Such pinion is carried by a spindle 38 squared at 39 which is supported in a sleeve 40 of the casing.- The squared portion carries a pointer 41 Figs. 2,3 and 4 the boss portion of which has a square opening 42 to fit the spindle, a slot 43 and groove 44 as shown in Figs. 1 and 4 sothat a thumb nut or disk may engage with the pointer by means of a groove 43 and collar 46 which it carries. The pointer is able to slide to and fro on the squared portion of the 'spindle under the action of the thumb nut which is internally screwed and works on a reduced screwed portion 47 of the spindle.

pointer 41 is also adapted to engage a toothed se ent-al rack-48 screwed to or formed on the outside of the casing 1. f

The pointer can only be disengaged from the rack by rotating the thumb lnut on its screw which will result in drawing it, together with the pointer outwardly and away from engagement with the rack after which the spindle may be turned with the pinion 37 and segment 36 to tilt the ring 13 by mov-l ing the pointer to the right or left as desired, a return-screwing movenfent of the thumb screw causing it to b'e forced inwardly and engage'again with the rack at the point itis to be set, the screwing of the'nut hard down upon the pointer finally locking it and the latter to the casing, so that the swash ring is fixed5 against any vibration ofthe lubricator. As the position of this swash ring varies, so does the stroke of the plunger 16l which at every downward movement of itself and piston 18 Vcarries some. of the lubricant with it the return movement allowing the lubricant to pass through opening-t 21 to the opening 22 down the passage of the block 24 to the outlet valve which 'under the pressure separates between the cutting edge 25 and coned seat in block 26 delivering the lubricant to the passage ways and pipe V34.

Should any hard substance or gritof the graphite or other hard material in the lubricant lodge in the deliverv valve the hard knife like cutting edge cuts through it as it is fo-rciblypressed on to its hardened conical.

seat which takes place with a slightsliding action so that no obstruction of the valve can take place by substances lodging between the two members of same.

What we`claim is V' y 1. In a lubricator and in combination a containeneasing Lfor the lubricant, a pump The i in the desired position including' a movable I part, a rack with which such part' can engage and meansfor withdrawing such part from the rack, and causing it to engage therewith after it has been moved, and the position of the swash ring altered.

2. In a lubricator and in combination, a container casing for the lubricant, a pump therein, a movable swash ring controlling the stroke of the pump, means for moving such swash ring comprising a segment carriedthereby and a pmion, a rotatable spindle ,for Vthe pinion, a pointer carried by the spindle outsidethe casing a rackV with which such pointer engages, a thumb screw on the spindle end, a collar on the thumb screw engaging a groove in the pointer and means for causing the pointer and spindle to move together, whereby rotation of the nut will withdraw the pointer from the'rack, whereupon it may be turned to move the swash ring and afterward rengaged with` the rack and screwed fast to the easing.

3. In a lubricator and in combination, a container casing for the lubricant, a barrel within the container, a Slidable piston 1n the barrel, a plunger for the barrel, an inlet rotation, a pivoted swash ring in which such lever rotates, means for rocking such swash ring and means for setting such swash ring in the desired position including ya movable part, a rack with which such part can engage and means for withdrawing said part from the rack after which it becomes rotatabl'e and causing it to engage therewith after it has been rot-ated and they position of the swash ring altered.

4. 'In a lubricator and in combination, a

therein, a movable swash ring controlling the stroke of the pump, means for moving such swash ring, and means for setting same in the desired position including a movable part, a rack with which such part can engage, means for withdrawing such part from the rack, and causing it to engage therewith after it has been moved, and the position of the swash ring altered, and a delivery valve for the pump comprising a hard seating-and a hard cutting edge engaging therewith. v f

5. In a lubricator and in combination, a container casing for the lubricant, a pump barrel within the container, a slidable pisf Iton in`the barrel, a plungerv for the. barrel,

an inlet valve between the piston and plunger, means for rotating the barrel, Aa lever connected to the plunger and barrel rotating means, said lever being capableof rotation, a pivoted swash ring in which such lever rotates, means for rocking such swash ring vcontainer casing for the lubricant, a pump a rack with which such part can engage,

means for withdrawing said part from the rack after which it becomes rotatable and causing it to engage therewith after it has been ro-tated and the position of the swash ring altered, and a delivery valve for the pump comprising a hard cutting edge carried by a member of the valve and a hard seating carried by the other member one of such members being attached to the barrel and the other being pressed to it by spring pressure.

In witness whereof we have hereunto 'set 15 our hands lin the presencey of the two subscribing Witnesses.

WILLIAM HUMPHREI' KNOWLES. WILLIAM FREDERICK GOREHAM. Witnesses:

PHILIP M. JUSTICE, ALLEN LARRY JONES. 

